Water from certain natural springs on Mount Rinjani is considered safe to drink by many local guides and porters. These springs are found in specific areas of the mountain and provide clear, fresh water that has been used for generations by people familiar with the terrain. Hikers sometimes drink from these springs when trekking with experienced local teams who know exactly which sources are clean and reliable. The water is generally cold, fresh, and naturally filtered through the volcanic rock.
Although the spring water is safe for locals, most trekking companies, including ours, still provide all drinking water for hikers. This is the safest and most controlled option because it avoids any risk of contamination from unfamiliar sources. Natural water quality can vary with weather, trail conditions, or activity around the mountain, so relying entirely on spring water is not recommended for visitors. Carrying treated or bottled water ensures that every hiker stays hydrated without worrying about the safety of what they are drinking.
For this reason, you do not need to bring a filter or purification tablets. Our team supplies all drinking water needed throughout the trek, including water for the summit push and for each meal. The combination of safe natural springs and prepared water from the trekking team means that staying hydrated on Rinjani is simple and secure.